Effects of bistatic clutter dispersion on STAP systems

In this paper, we analyze the performance of several space-time adaptive processing (STAP) approaches in bistatic applications. Specific consideration is given to the effects of bistatic clutter spectral dispersion on covariance estimation and the algorithm's resulting clutter rejection capability. We emphasize the role of adaptive processing methods capable of high performance with efficient utilization of training data. A deterministic two-dimensional (angle-Doppler) compensation technique is used as a preprocessor and is compared to the Doppler warping approach. Algorithm performance is assessed using the output signal-to-interference plus noise ratio (SINR) compared to that of the matched filter with known covariance.

[1]  M. Rangaswamy,et al.  A parametric multichannel detection algorithm for correlated non-Gaussian random processes , 1997, Proceedings of the 1997 IEEE National Radar Conference.

[2]  I. Reed,et al.  Rapid Convergence Rate in Adaptive Arrays , 1974, IEEE Transactions on Aerospace and Electronic Systems.

[3]  L.E. Brennan,et al.  Theory of Adaptive Radar , 1973, IEEE Transactions on Aerospace and Electronic Systems.

[4]  F. Pearson,et al.  Simulation and Analysis of Adaptive Interference Suppression for Bistatic Surveillance Radars , 2001 .

[5]  A. Haimovich,et al.  The eigencanceler: adaptive radar by eigenanalysis methods , 1996, IEEE Transactions on Aerospace and Electronic Systems.

[6]  G. K. Borsari,et al.  Mitigating effects on STAP processing caused by an inclined array , 1998, Proceedings of the 1998 IEEE Radar Conference, RADARCON'98. Challenges in Radar Systems and Solutions (Cat. No.98CH36197).

[7]  M.C. Wicks,et al.  Adaptive clutter cancellation in bistatic radar , 2000, Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154).

[8]  D. Lamensdorf,et al.  Adaptive Space-Time Processing for Airborne Radar. , 1996 .

[9]  Hong Wang,et al.  On adaptive spatial-temporal processing for airborne surveillance radar systems , 1994 .

[10]  Braham Himed,et al.  STAP with angle-Doppler compensation for bistatic airborne radars , 2002, Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322).

[11]  Richard Klemm,et al.  Comparison between monostatic and bistatic antenna configurations for STAP , 2000, IEEE Trans. Aerosp. Electron. Syst..

[12]  Braham Himed,et al.  Bistatic STAP performance analysis in radar applications , 2001, Proceedings of the 2001 IEEE Radar Conference (Cat. No.01CH37200).

[13]  R.C. DiPietro,et al.  Extended factored space-time processing for airborne radar systems , 1992, [1992] Conference Record of the Twenty-Sixth Asilomar Conference on Signals, Systems & Computers.